Nut & walnut cracker [My grandma design]

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Another one of my designs I have been using it for ages. I was trying to design this plastic one the same as the wooden one I found in my grandma's house. The best part is that the shell is not flying around when you crack it. There are two designs: small for nuts and big for walnuts&nuts. But lately, I am using only the big one.

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The models in the pictures are made of PLA and 0.2 resolution with 20% infill. The base needs only 20% infill because the entire shell is made of small cylinders which significantly improve the strength of the material, see the last image. The handle must be printed vertically.